US6396771B2 - Means for recharging a watch accumulator - Google Patents

Means for recharging a watch accumulator Download PDF

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Publication number
US6396771B2
US6396771B2 US09/726,113 US72611300A US6396771B2 US 6396771 B2 US6396771 B2 US 6396771B2 US 72611300 A US72611300 A US 72611300A US 6396771 B2 US6396771 B2 US 6396771B2
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United States
Prior art keywords
accumulator
timepiece
timepiece according
stem
pusher
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Expired - Lifetime
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US09/726,113
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English (en)
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US20010004337A1 (en
Inventor
Daniel Paratte
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
ETA SA Manufacture Horlogere Suisse
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Eta SA Fabriques dEbauches
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Assigned to ETA SA FABRIQUES D'EBAUCHES reassignment ETA SA FABRIQUES D'EBAUCHES ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PARATTE, DANIEL
Publication of US20010004337A1 publication Critical patent/US20010004337A1/en
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    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G19/00—Electric power supply circuits specially adapted for use in electronic time-pieces
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C10/00—Arrangements of electric power supplies in time pieces

Definitions

  • the present invention concerns an electric timepiece such as, in particular, a wristwatch, supplied with electric current by an accumulator which is intended to be recharged once flat, and means for recharging the accumulator.
  • the accumulator recharging device disclosed in the aforementioned Patent includes a metal stem passing through a sleeve made of an electrically insulating material, this sleeve itself being housed in a second reinforcing sleeve.
  • This latter sleeve which is metallic, is driven into the middle part of the watch case.
  • the inner end of the stem is in contact with the top face of the accumulator which forms one of the poles of said accumulator, while the outer end of said stem is pierced with a blind hole intended to accommodate the plug of a recharging apparatus.
  • the outer end of the stem is protected by a removable cap having the shape of a winding crown.
  • Recharging of the accumulator can be effected by means of a pocket torch battery.
  • the recharging apparatus includes two metal strips electrically insulated from each other. One of the strips carries a conical plug intended to penetrate the blind hole of the recharging stem described above.
  • the other strip of the recharging apparatus is in contact with the earth of the watch, for example with the time-setting crown. The battery thus recharges the accumulator, one night being generally sufficient for the accumulator to be able to power the movement again for several months.
  • Such a recharging device advantageously permits the accumulator supplying a watch with electric current to be recharged without it being necessary, in order to proceed with this recharging operation, to open and then close the watch case again in order to be able to remove then replace the accumulator in said case.
  • Such a recharging device has however certain drawbacks from among which one can cite the fact that it is necessary to provide an additional part, in this case a recharging stem, solely intended to allow the watch accumulator to be recharged.
  • This additional part considerably complicates the construction of the watch case which, of course, has a negative impact on the manufacturing costs.
  • the recharging stem which passes through the watch case also has the drawback of altering the sealing or water tightness thereof.
  • the recharging stem and the time-setting crown by means of which the accumulator is recharged are in permanent electric contact with said accumulator.
  • the object of the present invention is to overcome the above problems and drawbacks in addition to others by proposing a particularly simple and inexpensive system for recharging the accumulator of a watch.
  • the present invention therefore concerns a timepiece, in particular a wristwatch, supplied with electric current by an accumulator intended to be recharged once flat, this timepiece including a time-setting stem and at least one control member for at least one horological function of said timepiece, characterised in that the time-setting stem is electrically connected to one of the poles of the accumulator, and in that the control member can be electrically connected to the other pole of the accumulator after said member has been pressed.
  • the present invention also concerns a timepiece of the aforementioned type, this timepiece including at least a first and a second control member each controlling at least one horological function of said timepiece, characterised in that each of the first and second control members can be connected to one of the poles of the accumulator after said member has been pressed.
  • the watch accumulator can be recharged solely by using the means carried by the watch for adjusting and activating its usual horological functions. It is thus no longer necessary to add additional parts to the watch such as a contact stem or suchlike to be able to connect the accumulator of said watch to a recharging apparatus.
  • the construction of the watch is thus simplified, which substantially limits the manufacturing costs. Likewise, the sealing of the case is not altered.
  • control member or members are push-buttons.
  • the accumulator charging circuit is only closed when the push-button or push-buttons are pushed in, which avoids any risk of the accumulator being inadvertently discharged when the watch is not placed on the recharging apparatus.
  • the push-buttons may, in fact, be easily insulated from a metal case insofar as they do not engage or mesh with the movement of the watch but act by simple electric contact, for example with a printed circuit contact area, to control the horological functions of said watch.
  • FIG. 1 is a top view of a timepiece according to the invention including a time-setting stem and a push-button;
  • FIG. 2 is a detailed view on a larger scale of the push-button of FIG. 1;
  • FIG. 3 is a top view of a push-button
  • FIG. 4 is a cross-section of a push-button of FIG. 3;
  • FIG. 5 is a blown up perspective view of a key mounted on the stem of a push-button
  • FIG. 6 is a face view of the key of FIG. 5;
  • FIG. 7 is a cross-section of a first alternative embodiment of a push-button
  • FIG. 8 is a cross-section of a second alternative embodiment of a push-button.
  • FIG. 9 is a top view of a timepiece according to the invention including four push-buttons.
  • the present invention proceeds from the general inventive idea which consists in recharging the accumulator of a watch solely by using the means conventionally carried by such a watch for adjusting and activating its usual horological functions.
  • a control member of the watch in order to recharge the watch accumulator, is used, which, in its rest position, is not in electric contact with the terminal of the accumulator to which it is connected, so that any risk of the accumulator being inadvertently discharged in normal operating conditions of the watch is avoided.
  • the timepiece according to the invention may be, for example, a wristwatch. It is shown schematically in FIG. 1 and designated as a whole by the general reference numeral 1 . It includes, in particular, a middle part 2 , which may or may not be made of metal, through which passes a time-setting stem 4 and at least one control member 6 controlling at least one horological function of said watch 1 .
  • the control member 6 is of the push-button type. This push-button 6 is principally formed of an elongated metal stem 8 preferably, but not exclusively, having a cylindrical shape.
  • stem 8 of push-button 6 passes through a sleeve 10 made of an electrically insulating material as shown schematically in FIG. 2 .
  • This sleeve 10 is driven into middle part 2 of watch 1 .
  • Middle part 2 of watch 1 defines a central cavity occupied, in a conventional manner, by a clockwork movement, display means, such as an hour hand, a minute hand and a second hand moving above a dial, as well as other elements, such as, in particular, a printed circuit 12 on which is mounted an electronic control module 14 which controls the operation of the clockwork movement of said watch 1 .
  • Electronic control module 14 is supplied with current by an accumulator 16 intended to be recharged once flat.
  • Accumulator 16 shown schematically in FIG. 1, typically has the shape of a disc or button. It may be housed in the back cover of watch 1 .
  • the bottom face of accumulator 16 which constitutes its negative pole 18 is electrically connected to the metal back cover and thus to metal middle part 2 , i.e. to the earth of watch 1 , for example via a contact spring secured to the inner surface of the back cover of said watch 1 .
  • the positive pole 20 of accumulator 16 which is constituted by its top face is connected, in a conventional manner, to the positive input terminal 22 of electronic control circuit 14 which forms the second supply conductor of the movement of watch 1 .
  • the watch in particular the back cover and middle part thereof, may be made of an electrically insulating material such as a plastic material.
  • the watch in particular the back cover and middle part thereof, may be made of an electrically insulating material such as a plastic material.
  • only one of the poles of accumulator 16 needs to be connected by an electric connection to time-setting stem 4 , the other pole of said accumulator 16 remaining connected to input terminal 22 of control circuit 14 .
  • poles of accumulator 16 may be inverted, the bottom face of the round battery forming its positive pole 20 , and the negative pole 18 then being located above the battery.
  • positive pole 20 is electrically connected to the earth of watch 1 .
  • time-setting stem 4 essentially includes a control rod 24 penetrating a lateral opening 26 of middle part 2 which guides rod 24 in translation and in rotation. Lateral opening 26 is oriented conventionally along a horizontal 3 o'clock-9 o'clock axis.
  • Control rod 24 first includes a winding crown 28 so that the user of watch 1 can manoeuvre rod 24 in translation and in rotation.
  • Rod 24 further includes three grooves 32 a , 32 b and 32 c which co-operate with one end 34 a of a spring 34 to define three axial positions of said rod 24 .
  • end 34 a of spring 34 is meshed with groove 32 b to define the position of the mechanism in which date correction wheel 30 is driven.
  • positive pole 20 and negative pole 18 of accumulator 16 are respectively connected to positive input terminal 22 and negative input terminal 36 of electronic control circuit 14 .
  • push-button 6 is electrically connected to positive pole 20 of accumulator 16
  • time-setting stem 4 is connected to the earth of watch 1 , i.e. to negative pole 18 of said accumulator 16 . It is thus possible, as will be seen in detail hereinafter, to recharge accumulator 16 from the exterior of watch 1 by means of a recharging apparatus 38 whose electric plugs 40 and 42 will be accommodated by push-button 6 and time-setting stem 4 respectively.
  • push-button 6 includes a pusher head 44 and the metal pusher stem 8 .
  • Pusher stem 8 is arranged so as to slide inside a housing 46 of generally cylindrical shape arranged in middle part 2 of watch 1 .
  • Pusher stem 8 moves axially in housing 46 against the return force of a spring 48 when a control push is applied onto the pusher head 44 .
  • the return spring 48 is arranged in a housing 50 arranged in pusher head 44 and rests axially on the bottom 52 of a cavity 54 provided in middle part 2 .
  • Pusher stem 8 has at one location on its length an annular groove 56 in which a sealing gasket 58 is housed. This gasket 58 assures the water-resistant sealing of housing 46 when stem 8 slides into it when push-button 6 is activated by a user.
  • Push-button 6 also includes retaining means 60 which exert sufficient force on pusher stem 8 to act against the return force of spring 48 and thus to prevent said stem 8 from escaping from housing 46 in which it slides.
  • Retaining means 60 are a W-shaped key which is engaged in an annular groove 62 of pusher stem 8 towards its end opposite pusher head 44 . In normal conditions of use, key 60 is thus always pressed against the inner face of middle part 2 of watch 1 . It only moves when a control push is applied onto push-button 6 .
  • Key 60 is obtained by cutting out or stamping a metal sheet along a particular contour and bending it so that, after being set in place, it performs both the function of key and contact means.
  • Key 60 is thus formed of two strips 64 a and 64 b extending in the general plane of said key 60 . These two strips 64 a , 64 b are connected to each other in their top part by a V-shaped notch 66 intended to engage in annular groove 62 of pusher stem 8 to form a key.
  • each of strips 64 a , 64 b is extended beyond a bent portion 68 a , 68 b by a small bent contact lug 70 a , 70 b .
  • contact lug 70 a is projected at a certain angle outside the general plane of key 60 to establish a contact, for example an earth contact, over a zone of printed circuit 12 as will be seen hereinafter.
  • notch 66 is extended by a tongue 72 bent at substantially 90° with respect to the plane of key 60 .
  • Printed circuit 12 on which electronic control circuit 14 is mounted includes two contact pads 74 a , 74 b which are each formed of a semi-cylindrical hole having a metallised vertical wall 76 a , 76 b arranged facing respective contact lugs 70 a , 70 b of key 60 .
  • One of these holes is electrically connected to control module 14 , while the other hole is connected to positive pole 20 of the accumulator.
  • Tongue 72 which extends notch 66 at 90° with respect to the plane of key 60 abuts onto printed circuit 12 in the event that key 60 leaves annular groove 62 of pusher stem 8 in which it is engaged. Key 60 is thus not likely to fall into the clockwork movement of the watch which it could damage.
  • push-button 6 is electrically connected to positive pole 20 of accumulator 16
  • time-setting stem 4 is connected to the earth of watch 1 , i.e. to negative pole 18 of said accumulator 16 .
  • the latter is placed on recharging apparatus 38 .
  • Electric plugs 40 and 42 of recharging apparatus 38 are then accommodated by push-button 6 and time-setting stem 4 respectively.
  • Electric plug 42 which comes into contact with time-setting stem 4 may be formed of a simple metal strip.
  • push-button 6 includes a metal pusher head 44 driven onto pusher stem 8 . It must then be ensured that this metal pusher head 44 does not cause short-circuits with its surroundings.
  • pusher head 44 is made of a plastic or elastomeric material by injection moulding so as to connect itself to pusher stem 8 .
  • metal pusher stem 8 is flush with pusher head 44 or projects slightly from the surface of said pusher head 44 , so that the electric contact can be established with electric plug 40 of recharging apparatus 38 .
  • pusher stem 8 is embedded in pusher head 44 which is made of a relatively soft plastic material or elastomer.
  • Electric plug 40 of recharging apparatus 38 thus has an extremely tapered point 78 which his capable of easily penetrating the soft material of which pusher head 44 is made and to come into electric contact with pusher stem 8 .
  • Timepiece 1 may include at least two control members each controlling at least one horological function of said timepiece.
  • these control members are formed by four push-buttons 6 ′ of the type described above.
  • These four push-buttons 6 ′ each include in particular retaining means 60 ′ cut out and bent so as to exert, after being set in place, both the function of key and contact means.
  • Retaining means 60 ′ are keys facing which is provided, each time, a pair of contact areas 74 ′ a , 74 ′ b formed on printed circuit 12 ′.
  • contact areas 74 ′ a , 74 ′ b are each formed of a semi-cylindrical hole having a metallised vertical wall 76 ′ a , 76 ′ b.
  • one hole of each pair of contact areas 74 ′ a , 74 ′ b is electrically connected to electronic control module 14 ′, whereas the other hole is connected to the earth of watch 1 , i.e. to negative pole 18 ′ of accumulator 16 ′.
  • the other pairs of holes 74 ′ a , 74 ′ b except for one pair whose hole will be connected to positive pole 20 ′ of accumulator 16 ′.
  • one of push-buttons 6 ′ in this case the one located at the top and to the right of FIG.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)
US09/726,113 1999-12-15 2000-11-30 Means for recharging a watch accumulator Expired - Lifetime US6396771B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH2299/99 1999-12-15
CH229999 1999-12-15

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US20010004337A1 US20010004337A1 (en) 2001-06-21
US6396771B2 true US6396771B2 (en) 2002-05-28

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US (1) US6396771B2 (zh)
JP (1) JP4836321B2 (zh)
KR (1) KR100739269B1 (zh)
CN (1) CN1154029C (zh)
HK (1) HK1038619B (zh)
SG (1) SG93287A1 (zh)
TW (1) TW457407B (zh)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030099161A1 (en) * 2001-11-26 2003-05-29 Eta Sa Fabriques D'ebauches Electronic object of small dimensions capable of being worn on the wrist
US20050064751A1 (en) * 2003-09-23 2005-03-24 Yvan Ferri Adapter for portable electronic instrument and transmission system between these two elements
US9557716B1 (en) * 2015-09-20 2017-01-31 Qualcomm Incorporated Multipurpose magnetic crown on wearable device and adapter for power supply and audio, video and data access
WO2018194967A1 (en) * 2017-04-18 2018-10-25 Timex Group Usa, Inc. Crown pusher assembly and wristwearable electronic device comprising same
US11714385B2 (en) 2016-02-26 2023-08-01 Semiconductor Energy Laboratory Co., Ltd. Connecting member, power supply device, electronic device, and system

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CN1708734B (zh) * 2002-10-28 2010-09-01 Eta瑞士钟表制造股份有限公司 按钮控制装置以及包含该装置的便携式电子仪器
ATE331323T1 (de) * 2003-09-23 2006-07-15 Asulab Sa Tragbares elektronisches gerät mit zumindest einem angepassten betätigungselement zum übertragen von elektrischen signalen
US10691230B2 (en) 2012-12-29 2020-06-23 Apple Inc. Crown input for a wearable electronic device
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US11068128B2 (en) 2013-09-03 2021-07-20 Apple Inc. User interface object manipulations in a user interface
US10001817B2 (en) 2013-09-03 2018-06-19 Apple Inc. User interface for manipulating user interface objects with magnetic properties
CN110262677B (zh) 2013-09-03 2022-08-09 苹果公司 计算机实现的方法、电子设备和计算机可读存储介质
US10545657B2 (en) 2013-09-03 2020-01-28 Apple Inc. User interface for manipulating user interface objects
US10503388B2 (en) * 2013-09-03 2019-12-10 Apple Inc. Crown input for a wearable electronic device
US9282179B2 (en) * 2014-06-04 2016-03-08 Alexey Leonidovich Ushakov Accessory for mobile electronic device
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CN113824998A (zh) 2014-09-02 2021-12-21 苹果公司 音乐用户界面
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US20160062571A1 (en) 2014-09-02 2016-03-03 Apple Inc. Reduced size user interface
US10365807B2 (en) 2015-03-02 2019-07-30 Apple Inc. Control of system zoom magnification using a rotatable input mechanism
CN106159617A (zh) * 2015-03-26 2016-11-23 群光电子股份有限公司 电子装置、和具有电子装置及船坞座的结构
EP3477403A3 (en) * 2016-11-30 2019-06-05 Manufacture Modules Technologies Sarl Smartwatch
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US11435830B2 (en) 2018-09-11 2022-09-06 Apple Inc. Content-based tactile outputs
KR20220119965A (ko) * 2021-02-22 2022-08-30 삼성전자주식회사 방수 구조 및 이를 포함하는 전자 장치
US11747919B1 (en) * 2021-05-14 2023-09-05 Apple Inc. Multi-input for rotating and translating crown modules

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US4321996A (en) * 1979-05-10 1982-03-30 A. O. Smith Harvestore Products, Inc. Cleated belt forage conveyor
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030099161A1 (en) * 2001-11-26 2003-05-29 Eta Sa Fabriques D'ebauches Electronic object of small dimensions capable of being worn on the wrist
US7175339B2 (en) * 2001-11-26 2007-02-13 Eta Sa Fabriques D'ebauches Electronic object of small dimensions capable of being worn on the wrist
US20050064751A1 (en) * 2003-09-23 2005-03-24 Yvan Ferri Adapter for portable electronic instrument and transmission system between these two elements
US6955552B2 (en) * 2003-09-23 2005-10-18 Asulab S.A. Adapter for portable electronic instrument and transmission system between these two elements
US9557716B1 (en) * 2015-09-20 2017-01-31 Qualcomm Incorporated Multipurpose magnetic crown on wearable device and adapter for power supply and audio, video and data access
US11714385B2 (en) 2016-02-26 2023-08-01 Semiconductor Energy Laboratory Co., Ltd. Connecting member, power supply device, electronic device, and system
WO2018194967A1 (en) * 2017-04-18 2018-10-25 Timex Group Usa, Inc. Crown pusher assembly and wristwearable electronic device comprising same

Also Published As

Publication number Publication date
JP4836321B2 (ja) 2011-12-14
JP2001194472A (ja) 2001-07-19
TW457407B (en) 2001-10-01
KR100739269B1 (ko) 2007-07-12
HK1038619B (zh) 2005-03-24
CN1305128A (zh) 2001-07-25
HK1038619A1 (en) 2002-03-22
KR20010062315A (ko) 2001-07-07
CN1154029C (zh) 2004-06-16
US20010004337A1 (en) 2001-06-21
SG93287A1 (en) 2002-12-17

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